Read H31-161-ENU Free Questions Online To Verify H31-161 Exam

We introduce you to take and pass H31-161-ENU exam to complete the Huawei HCIE-Carrier IP (Written) certification. New HCIE-Carrier IP (Written) H31-161-ENU exam questions online ensure that you can pass Huawei H31-161-ENU exam smoothly.

New H31-161-ENU exam questions were released on July 22, 2020, which contain 181 practice exam questions and answers. We here share 20 free demo questions online for checking first. After read H31-161-ENU free questions, you will find that New HCIE-Carrier IP (Written) H31-161-ENU exam questions online are great for preparation. Any other questions, you can contact us freely: [email protected].

Begin To Test:

1. On a VPLS network a PE router receive a packet that containers layer 2 user data from a PE.
How does the PE router determine the source VSI of this packet?

Outer label of the packets

Destination MAC address in the L2 PDU encapsulation in the packet

MAC address and VLAN ID in the PDU encapsulated in the packet

Inner label of the packet

Question 1 of 20

2. When the RSVP LSP FRR protection is enables, which of the following statements about the original RSVP LSP are true?

The point of local repair (PLR) and the merge point (MP) can perceive the application of FRR but other nodes on the original RSVP LSP

The RESV message is sent by the MP to an upstream node through a bypass LSP after modified.

The PATH message is sent by the PLR to the MP through a bypass LSP after modified.

The MP sends the ResvTear message to the upstream node of the original RSVP LSP.

Question 2 of 20

3. Which of the following statements about the working principle f LDAP FRR are true?

After LDP FRR is enabled, a backup LSP is generated both the primary and backup LSPs are stored in the forwarding table.

LDP TFRR can be deployed on the ingress node and the intermediate node. The primary and backup LSPas are recorded in the ILM table on the intermediate node and on the FIB table on the ingress node.

After LDP FRR enable, a backup can degenerated for a primary LSP to prevent serious packet loss during fats flapping of the primary LSP.

Multiple LSPs can be up on the ingress node, that is entries about multiple backup LSPs are generated in the forwarding table according to the priority of the FRR, implementing multi-layer protection.

Question 3 of 20

4. Which of the following statements about the VPLS packet forwarding are true?

If a PE receives broadcast packets from a local user, the PE forwards the packets to all other interfaces In the same VSI and all other PEs.

If the destination MAC address of a packet is not a broadcast address and a PE has not learned the MAC address, the broadcast this packet in one VSI

If the destination MAC address of a packets is not a broadcast address and a PE has not learned the MAC address, the PE broadcast this packet in on VSI.

If a receive broadcast packet sent a remote PE, it forwards the packet only to the AC interface instead of other PEs.

Question 4 of 20

5. Which of the following statements about control words in the L2VPN are true?

When SVC VLL is used, if PEs at two ends of a VC use different control words, the may not become Up.

When Martini VLL is used, if PEs at two ends of a virtual connection (VC) use different control words, the VC may not become Up

The control word can be used to identically the packet sequence.

A control word generally has two bytes and can ne extended to four bytes.

The control word can be used for packet padding For example, when the public network uses Ethernet and the AC uses Peer-to-protocol (PPP), control words can be used to transfer and identify PPP packet with a bytes.

Question 5 of 20

6. Which statement about primary VPN tunnel binding is false?

Only the data destined for the specific peer device is transmitted through the n=bound primary VPN tunnel Data to other devices is transmitted using the default tunnel policy.

Primary tunnel ensures that data can be transmitted from a VPN t a specific peer device permanently through a dedicate TE tunnel.

Primary VPN tunnel binding means to bind a tunnel to a specific VPN. The bound tunnel is exclusive to the VPN.

The bound primary tunnel can be selected sequentially.

Question 6 of 20

7. In MPLS QoS , traffic policies are developed on simple traffic classified and complex traffic classification policies based on simple traffic classification the service class color, and drop priority of packet are reset based on the packet in the traffic policies on complex traffic classification measures such as traffic classification is applied on border routers in Different domain, and traffic classification core routers.
QoS policies are configured by performing the following operations:
Defines DiffSer domain and configuring a traffic policy.
Classification traffic
Defines traffic behavior and configures characteristics of behaviors.
Defines a traffic policy and specifies for traffic categories
Applies the traffic policy
Configure L-LSP
Configures reserve address checks
Adds interface to the DiffSer domain
Which of the proceeding operations are required when you configured simple traffic classification?

1 6 8

2 3 4 8

1 5 6

2 4 5 7

Question 7 of 20

8. Which of the following statements about the merits of the HoVPN networking are true?

If the UPE are SPE are separated by an IP/IPMLS network, they can be connected through a generic routing encapsulation (GRE) or LSP runnel. A hierarchical MPLS VPN provides good scalability.

The SPE and UP exchange routes and advertise labels through MP-BGP. Each UPE runs only one – BGP peer, reducing system overheads and simplifying configuration.

The BGP/MPLS VPN can be deployed layers by layer. When the performance of a super strum provider edge (SPE) is insufficient, a user-end provider edge (UPE) can be added and the SPE moved to a lower layer. When the access capability of a UPE is insufficient, and SPE can be added.

Packets are forwarded between a UPE and an SPE after being label. The UPE and SPE are connected through an interface (or a subinterface), helping reduce the usage of limited interface resources.

Only local VPN routes need to be maintained on an SPE and remote routes on the SPE are represented by a default route or an aggregate route, reducing the load of the SPE.

Question 8 of 20

9. Which statement about the configuration of route target (RT) and route distinguisher (RD) is true?

If routes need to exchange between two VPNs, the value of import RT of one VPN must be partially the same as Export RT of the other VPN.

RD and RT of a VPN instance cannot be the same as those of another VPN instance on the same PE.

If routers need to exchanged two VPNs, the value of import RT of one of the same as that of RT of the other VPN.

Two instances of a VPN share an RT.

Question 9 of 20

10. Which statement about the Hub s MPLS VPN networking is false?

The Hub PE can receive the VPN_IPv4 routes advertised by all Spoke PEs.

When an MP-IBGB neighbor relationship is established between two spoke PEs, the value of the Import VPN Target attribute of one Spoke PE can be the same as tat of the Export VPN Target attribute of the other Spoke PE.

The Hub PE advertises the routes learned from one Spoke PE to other Spoke PEs. Therefore, Spoke sites can access other through the Hub site.

All Spoke PEs can receive the VPN-IPv4 routes advertised by the Hub PE.

Question 10 of 20

11. RTA is a provider edge (PE) router. OSPF is deployed between RTA and a customer edge (CE).
Which of the following can be used to avoid routing loops when RTA generate an autonomy system-external (ASE) link-state advertisement (LSA) and sends it to the CE?

Configuring the same VPN route tag on the PE

Configuring Shame Link among PEs

Setting DN-bit in the ASE LSA

Configuring the same domain ID on the PE

Question 11 of 20

12. Which of the following can be implemented in an IP backbone network?

RIP

BGP

ISIS

MPLS

Question 12 of 20

13. Which statements about the edge access layer is true?

Using the packet technology it provides a comprehensive transport platform that boasts high reliability, quality of service (QoS) assurance, and large capacity.

It implement call control. With the software technology as the core, it completes basic real-time call control and connection control.

It connections users to the network by providing various access means, and converts the format of information can be transmitted on the network.

It process additional value-added service and operation support for established callas.

Question 13 of 20

14. Which statement describes the delay variation requirement of the voice service for the IP bearer network?

No strict requirement

Bearer network delay variation + 1s

Bearer network delay variation +100 ms, allowed maximum delay variation +200ms

Bearer network delay variation = 10 ms. Allowed maximum delay variation =20ms

Question 14 of 20

15. Which command is used to query the aging time of the firewall session?

display firewall session table

display firewall session table verbose

display firewall packet-filter default all

display firewall server-map

Question 15 of 20

16. For the Eudemon firewall, the nat-policy command is configured in which mode?

System mode

Interface mode

Interzone mode

Intrazone mode

Question 16 of 20

17. When configure IPSec VPN, which kind of encryption algorithms is more excellent in security

AES

3DES

SHA

MD5(128-bit)

Question 17 of 20

18. Which of the following statements about the working principle of LDP FRR are true?

After LDP FRR is enabled, a backup LSP is generated. Both the primary and backup LSPs are stored in the forwarding table.

LDP FRR can be deployed on the ingress node and the intermediate node. The primary and backup LSPs are recorded in the ILM table on the intermediate node and in the FIB table on the ingress node.

Multiple LSPs can be backed up on the ingress node, that is, entries about multiple backup LSPs are generated in the forwarding table according to the priority of the LDR FRR, implementing multilayer protection.

After LDP FRR is enabled, a backup LSP can be generated for a primary LSP to prevent serious packet loss during fast flapping of the primary LSP

Question 18 of 20

19. Which statement about the Ethernet clock synchronization technology used in actual solutions is true?

The IEEE1588 technology requires the intermediate node to support transparent clock transmission.

The NTP technology requires the intermediate node to support transparent clock transmission.

The CES packet recovery technology requires the intermediate node to support transparent clock transmission.

The 802.1as technology requires the intermediate node to support transparent clock transmission.

Question 19 of 20

20. On the IP bearer network, which of the following methods can be used to manage devices on the backbone network and switches on the signaling VPN?

Construct an outband NM network to manage all devices.

Leak public and private network routes to manage devices on the public and private networks.

Establish two physical or logical links with the PE to manage devices on the public and private networks. One link belongs to the public network and the other belongs to the private network.

Establish a physical or logical link with the PE and mount MCEs to the PE to manage devices on the public and private networks.

Question 20 of 20

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